#-- coding:utf-8 --
height=1.75
weight=80.5
bmi =80.5/(1.75**2)
print('bmi = ',bmi)
if bmi <18.5:
    print('过轻')
elif 18.5 <= bmi <=25:
    print('正常')
elif 25 <= bmi <=28:
    print('过重')
elif 28 <= bmi <=32:
    print('肥胖')
elif bmi>32:
    print('严重肥胖')